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nephacks
317
game/client/portal2/gameui/cvarslider.cpp
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317
game/client/portal2/gameui/cvarslider.cpp
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//========= Copyright <20> 1996-2005, Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//
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//=============================================================================//
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#include "CvarSlider.h"
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#include <stdio.h>
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#include "EngineInterface.h"
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#include "tier1/KeyValues.h"
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#include "tier1/convar.h"
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#include <vgui/IVGui.h>
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#include <vgui_controls/propertypage.h>
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#define CVARSLIDER_SCALE_FACTOR 100.0f
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// memdbgon must be the last include file in a .cpp file!!!
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#include <tier0/memdbgon.h>
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using namespace vgui;
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DECLARE_BUILD_FACTORY( CCvarSlider );
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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CCvarSlider::CCvarSlider( Panel *parent, const char *name ) : Slider( parent, name )
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{
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SetupSlider( 0, 1, "", false );
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m_bCreatedInCode = false;
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AddActionSignalTarget( this );
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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CCvarSlider::CCvarSlider( Panel *parent, const char *panelName, char const *caption,
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float minValue, float maxValue, char const *cvarname, bool bAllowOutOfRange )
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: Slider( parent, panelName )
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{
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AddActionSignalTarget( this );
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SetupSlider( minValue, maxValue, cvarname, bAllowOutOfRange );
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// For backwards compatability. Ignore .res file settings for forced setup sliders.
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m_bCreatedInCode = true;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CCvarSlider::SetupSlider( float minValue, float maxValue, const char *cvarname, bool bAllowOutOfRange )
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{
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m_flMinValue = minValue;
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m_flMaxValue = maxValue;
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// scale by CVARSLIDER_SCALE_FACTOR
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SetRange( (int)( CVARSLIDER_SCALE_FACTOR * minValue ), (int)( CVARSLIDER_SCALE_FACTOR * maxValue ) );
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char szMin[ 32 ];
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char szMax[ 32 ];
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Q_snprintf( szMin, sizeof( szMin ), "%.2f", minValue );
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Q_snprintf( szMax, sizeof( szMax ), "%.2f", maxValue );
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SetTickCaptions( szMin, szMax );
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Q_strncpy( m_szCvarName, cvarname, sizeof( m_szCvarName ) );
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m_bModifiedOnce = false;
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m_bAllowOutOfRange = bAllowOutOfRange;
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// Set slider to current value
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Reset();
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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CCvarSlider::~CCvarSlider()
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{
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CCvarSlider::ApplySettings( KeyValues *inResourceData )
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{
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BaseClass::ApplySettings( inResourceData );
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if ( !m_bCreatedInCode )
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{
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float minValue = inResourceData->GetFloat( "minvalue", 0 );
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float maxValue = inResourceData->GetFloat( "maxvalue", 1 );
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const char *cvarname = inResourceData->GetString( "cvar_name", "" );
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bool bAllowOutOfRange = inResourceData->GetBool( "allowoutofrange", false );
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SetupSlider( minValue, maxValue, cvarname, bAllowOutOfRange );
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if ( GetParent() )
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{
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// HACK: If our parent is a property page, we want the dialog containing it
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if ( dynamic_cast<vgui::PropertyPage*>(GetParent()) && GetParent()->GetParent() )
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{
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GetParent()->GetParent()->AddActionSignalTarget( this );
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}
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else
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{
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GetParent()->AddActionSignalTarget( this );
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}
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}
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose: Get control settings for editing
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//-----------------------------------------------------------------------------
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void CCvarSlider::GetSettings( KeyValues *outResourceData )
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{
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BaseClass::GetSettings(outResourceData);
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if ( !m_bCreatedInCode )
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{
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outResourceData->SetFloat( "minvalue", m_flMinValue );
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outResourceData->SetFloat( "maxvalue", m_flMaxValue );
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outResourceData->SetString( "cvar_name", m_szCvarName );
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outResourceData->SetBool( "allowoutofrange", m_bAllowOutOfRange );
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}
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}
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void CCvarSlider::SetCVarName( char const *cvarname )
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{
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Q_strncpy( m_szCvarName, cvarname, sizeof( m_szCvarName ) );
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m_bModifiedOnce = false;
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// Set slider to current value
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Reset();
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}
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void CCvarSlider::SetMinMaxValues( float minValue, float maxValue, bool bSetTickDisplay )
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{
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SetRange( (int)( CVARSLIDER_SCALE_FACTOR * minValue ), (int)( CVARSLIDER_SCALE_FACTOR * maxValue ) );
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if ( bSetTickDisplay )
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{
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char szMin[ 32 ];
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char szMax[ 32 ];
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Q_snprintf( szMin, sizeof( szMin ), "%.2f", minValue );
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Q_snprintf( szMax, sizeof( szMax ), "%.2f", maxValue );
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SetTickCaptions( szMin, szMax );
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}
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// Set slider to current value
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Reset();
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}
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void CCvarSlider::SetTickColor( Color color )
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{
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m_TickColor = color;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CCvarSlider::Paint()
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{
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// Get engine's current value
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// float curvalue = engine->pfnGetCvarFloat( m_szCvarName );
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ConVarRef var( m_szCvarName );
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if ( !var.IsValid() )
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return;
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float curvalue = var.GetFloat();
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// did it get changed from under us?
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if (curvalue != m_fStartValue)
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{
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int val = (int)( CVARSLIDER_SCALE_FACTOR * curvalue );
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m_fStartValue = curvalue;
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m_fCurrentValue = curvalue;
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SetValue( val );
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m_iStartValue = GetValue();
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}
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BaseClass::Paint();
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CCvarSlider::ApplyChanges()
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{
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if (m_bModifiedOnce)
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{
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m_iStartValue = GetValue();
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if (m_bAllowOutOfRange)
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{
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m_fStartValue = m_fCurrentValue;
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}
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else
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{
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m_fStartValue = (float) m_iStartValue / CVARSLIDER_SCALE_FACTOR;
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}
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//engine->Cvar_SetValue( m_szCvarName, m_fStartValue );
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ConVarRef var( m_szCvarName );
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var.SetValue( (float)m_fStartValue );
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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float CCvarSlider::GetSliderValue()
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{
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if (m_bAllowOutOfRange)
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{
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return m_fCurrentValue;
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}
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else
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{
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return ((float)GetValue())/ CVARSLIDER_SCALE_FACTOR;
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CCvarSlider::SetSliderValue(float fValue)
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{
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int nVal = (int)( CVARSLIDER_SCALE_FACTOR * fValue );
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SetValue( nVal, false);
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// remember this slider value
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m_iLastSliderValue = GetValue();
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if (m_fCurrentValue != fValue)
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{
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m_fCurrentValue = fValue;
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m_bModifiedOnce = true;
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CCvarSlider::Reset()
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{
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// Set slider to current value
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// m_fStartValue = engine->pfnGetCvarFloat( m_szCvarName );
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ConVarRef var( m_szCvarName );
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if ( !var.IsValid() )
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{
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m_fCurrentValue = m_fStartValue = 0.0f;
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SetValue( 0 );
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m_iStartValue = GetValue();
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m_iLastSliderValue = m_iStartValue;
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return;
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}
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float m_fStartValue = var.GetFloat();
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m_fCurrentValue = m_fStartValue;
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int value = (int)( CVARSLIDER_SCALE_FACTOR * m_fStartValue );
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SetValue( value );
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m_iStartValue = GetValue();
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m_iLastSliderValue = m_iStartValue;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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bool CCvarSlider::HasBeenModified()
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{
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if (GetValue() != m_iStartValue)
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{
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m_bModifiedOnce = true;
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}
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return m_bModifiedOnce;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Input : position -
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//-----------------------------------------------------------------------------
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void CCvarSlider::OnSliderMoved()
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{
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if (HasBeenModified())
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{
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if (m_iLastSliderValue != GetValue())
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{
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m_iLastSliderValue = GetValue();
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m_fCurrentValue = ((float) m_iLastSliderValue)/CVARSLIDER_SCALE_FACTOR;
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}
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// tell parent that we've been modified
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PostActionSignal(new KeyValues("ControlModified"));
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CCvarSlider::OnApplyChanges( void )
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{
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if ( !m_bCreatedInCode )
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{
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ApplyChanges();
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}
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}
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